Fix build of electra_cf, since the IO space setup interfaces were
changed when BenH rewrote it.
Also clean it up a bit, add 5V support, make it unloadable, remove some
dead variables, etc.
Signed-off-by: Olof Johansson <[email protected]>
---
Andrew,
I did this as an incremental patch that you can just merge into the base
one that's already in -mm, but I could merge and resubmit the base patch
instead if you prefer.
(The base patch is
pcmcia-compactflash-driver-for-pa-semi-electra-boards.patch)
-Olof
Index: linux-2.6/drivers/pcmcia/electra_cf.c
===================================================================
--- linux-2.6.orig/drivers/pcmcia/electra_cf.c
+++ linux-2.6/drivers/pcmcia/electra_cf.c
@@ -28,6 +28,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
+#include <linux/vmalloc.h>
#include <pcmcia/ss.h>
#include <asm/of_platform.h>
@@ -105,10 +106,8 @@ static int electra_cf_get_status(struct
/* NOTE CF is always 3VCARD */
if (electra_cf_present(cf)) {
- struct electra_cf_socket *cf;
-
*sp = SS_READY | SS_DETECT | SS_POWERON | SS_3VCARD;
- cf = container_of(s, struct electra_cf_socket, socket);
+
s->pci_irq = cf->irq;
} else
*sp = 0;
@@ -134,8 +133,10 @@ static int electra_cf_set_socket(struct
case 33:
gpio = (1 << cf->gpio_3v);
break;
+ case 5:
+ gpio = (1 << cf->gpio_5v);
+ break;
default:
- /* CF is 3.3V only */
return -EINVAL;
}
@@ -188,6 +189,7 @@ static int __devinit electra_cf_probe(st
int status;
const unsigned int *prop;
int err;
+ struct vm_struct *area;
err = of_address_to_resource(np, 0, &mem);
if (err)
@@ -206,22 +208,27 @@ static int __devinit electra_cf_probe(st
cf->ofdev = ofdev;
cf->mem_phys = mem.start;
- cf->mem_base = ioremap(mem.start, mem.end - mem.start);
+ cf->mem_size = PAGE_ALIGN(mem.end - mem.start);
+ cf->mem_base = ioremap(cf->mem_phys, cf->mem_size);
cf->io_size = PAGE_ALIGN(io.end - io.start);
- cf->io_virt = reserve_phb_iospace(cf->io_size);
+ area = __get_vm_area(cf->io_size, 0, PHB_IO_BASE, PHB_IO_END);
+ if (area == NULL)
+ return -ENOMEM;
+
+ cf->io_virt = (void __iomem *)(area->addr);
cf->gpio_base = ioremap(0xfc103000, 0x1000);
dev_set_drvdata(device, cf);
- if (!cf->mem_base || !cf->io_virt || !cf->gpio_base) {
+ if (!cf->mem_base || !cf->io_virt || !cf->gpio_base ||
+ (__ioremap_at(io.start, cf->io_virt, cf->io_size,
+ _PAGE_NO_CACHE | _PAGE_GUARDED) == NULL)) {
dev_err(device, "can't ioremap ranges\n");
status = -ENOMEM;
goto fail1;
}
- __ioremap_explicit(io.start, (unsigned long)cf->io_virt, cf->io_size,
- _PAGE_NO_CACHE | _PAGE_GUARDED);
cf->io_base = (unsigned long)cf->io_virt - VMALLOC_END;
@@ -263,8 +270,7 @@ static int __devinit electra_cf_probe(st
cf->socket.io_offset = cf->io_base;
/* reserve chip-select regions */
- if (!request_mem_region(mem.start, mem.end + 1 - mem.start,
- driver_name)) {
+ if (!request_mem_region(cf->mem_phys, cf->mem_size, driver_name)) {
status = -ENXIO;
dev_err(device, "Can't claim memory region\n");
goto fail1;
@@ -291,21 +297,22 @@ static int __devinit electra_cf_probe(st
}
dev_info(device, "at mem 0x%lx io 0x%lx irq %d\n",
- mem.start, io.start, cf->irq);
+ cf->mem_phys, io.start, cf->irq);
cf->active = 1;
electra_cf_timer((unsigned long)cf);
return 0;
fail3:
- release_mem_region(io.start, io.end + 1 - io.start);
+ release_region(cf->io_base, cf->io_size);
fail2:
- release_mem_region(mem.start, mem.end + 1 - mem.start);
+ release_mem_region(cf->mem_phys, cf->mem_size);
fail1:
if (cf->irq != NO_IRQ)
free_irq(cf->irq, cf);
- /* XXX No way to undo the ioremap_explicit at this time */
+ if (cf->io_virt)
+ __iounmap_at(cf->io_virt, cf->io_size);
if (cf->mem_base)
iounmap(cf->mem_base);
if (cf->gpio_base)
@@ -328,6 +335,7 @@ static int __devexit electra_cf_remove(s
free_irq(cf->irq, cf);
del_timer_sync(&cf->timer);
+ __iounmap_at(cf->io_virt, cf->io_size);
iounmap(cf->mem_base);
iounmap(cf->gpio_base);
release_mem_region(cf->mem_phys, cf->mem_size);
Index: linux-2.6/drivers/pcmcia/Kconfig
===================================================================
--- linux-2.6.orig/drivers/pcmcia/Kconfig
+++ linux-2.6/drivers/pcmcia/Kconfig
@@ -272,8 +272,8 @@ config AT91_CF
Or choose M to compile the driver as a module named "at91_cf".
config ELECTRA_CF
- bool "Electra CompactFlash Controller"
- depends on PCMCIA=y && PPC_PASEMI
+ tristate "Electra CompactFlash Controller"
+ depends on PCMCIA && PPC_PASEMI
help
Say Y here to support the CompactFlash controller on the
PA Semi Electra eval board.
-
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